Abstract: Secondary batteries with aqueous acid solutions of lead salts as electrolytes and inert electrode base plates also contain redox systems in solution. These systems have a standard potential of from -0.1 to +1.4 V relative to a standard hydrogen reference electrode, do not form insoluble compounds with the electrolytes and are not oxidized or reduced irreversibly by the active compositions applied to the electrode base plates, within their range of operating potentials.

Abstract: Filled nylon molding compositions of increased rigidity containing red phosphorus as a flameproofing agent and talc or mica as a filler. They may be converted to moldings which are used, above all, in the electrical industry.

Abstract: Wood preservatives for protecting wood or wood-base materials against animal pests, and which contain a perfluoroalkane sulfonate of the formula C.sub. n F.sub.2n+1 --SO.sub.3 M where n is one of the integers from 1-14 and M denotes hydrogen or a cation, and a process for protecting wood or wood-base materials against animal pests with these compounds.

Abstract: A process for the manufacture of olefin polymers by polymerizing .alpha.-monoolefins of 2 to 8 carbon atoms by means of a catalyst which is obtained from a silicon-containing material (component a), an organo-metallic compound containing alkyl groups (component b) and a chromium compound (component c), wherein the catalyst employed is obtained by (1) first bringing into contact (1.1) an alkogel (component a) of the empirical formula SiO.sub.2 .multidot. m Al.sub.2 O.sub.3 .multidot. n ROH, where m is a number from 0 to 2, n is a number such that the content of ROH in the alkogel is from 1 to 85 per cent by weight and R is alkyl of 3 to 8 carbon atoms, and (1.2) an aluminum compound containing certain alkyl groups (component b), with intimate mixing, to form a solid-phase reaction product, (2) then bringing into contact (2.1) the solid-phase reaction product obtained from stage (1) and (2.

Abstract: The method of stabilizing mineral oil and its refinery products by addition thereto of a small stabilizing amount of alternating copolymers of the type. . . A -- B -- A -- B -- A . . .in which A denotes the structural unit of the general formula--C(R.sup.1)(R.sup.2) - CH.sub.2 --where R.sup.1 denotes hydrogen or alkyl of from 1 to 8 carbon atoms and R.sup.2 has the meanings stated for R.sup.1 or denotes a phenyl group, and in which B stands for structural units of the general formulae ##STR1## where R.sup.3 denotes a saturated hydrocarbon radical of from 8 to 20 carbon atoms and R.sup.4 denotes hydrogen or alkyl of from 8 to 20 carbon atoms.

Abstract: Fibrids are prepared by introducing a solution of a polymer into a liquid precipitation medium while exposing it to shearing forces. A poly(amide-imide) resin solution is admixed with a solvent which is miscible with the resin solvent but which is a non-solvent for the resin itself.

Abstract: Magnetic recording media, the magnetic coating of which consists of a dispersion of elongated ferromagnetic chromium dioxide particles in an organic binder, the dispersions exhibiting particularly good storage stability. This is achieved by admixing 0.5 to 6% by weight, based on the amount of chromium dioxide pigment, of the zinc salt of an aliphatic carboxylic acid of 8 to 18 carbon atoms, during the manufacture of the chromium dioxide dispersions. Chromium dioxide dispersions with good storage stability and a high degree of orientation of the elongated magnetic particles in the magnetic coating are thus obtained in a simple manner.

Abstract: An electronic time base error correction technique in which the color video signal is recorded so that in playback in at least one channel sync information is provided along with the luminance information and the color burst information along with the chrominance information. Feedback loops are provided to derive from the sync information coarse-correction of the video signal and derive from the burst information fine-correction of the video signal. The color burst extends over the entire blanking interval.Three different approaches are specifically disclosed: in the first, coarse- and fine-correction are carried out in two tandem connected stages, respectively. In the second, coarse- and fine-correction are accomplished in the same stage by means of a bi-level phase comparator. The third approach is a modification of the second approach, in which the first and second techniques have been combined.

Abstract: Liquid and solid compositions are provided for souring and imparting softness to freshly laundered textile materials. When in the form of a stable homogeneous liquid, the composition may contain (a) a quaternized fatty amide, an aqueous emulsion of partially oxidized polyethylene or a fatty amphoteric compound as the softening agent, (b) hydrofluorosilicic acid, ammonium silicofluoride, zinc silicofluoride, ammonium acid fluoride, potassium acid fluoride, or orthophosphoric acid as the souring agent, and (c) water. When in the form of a stable dry solid, the composition may contain (a) a quaternized fatty amide or fatty amphoteric compound as the softening agent, and (b) ammonium silicofluoride, potassium silicofluoride, sodium silicofluoride, zinc silicofluoride, ammonium acid fluoride, sodium acid fluoride or potassium acid fluoride. A method of preparing the liquid composition is provided which insures that it remains stable and homogeneous while awaiting use.

Abstract: Hot-melt pressure-sensitive adhesive composition based on a rubbery block copolymer of a monovinyl-aromatic compound or monovinylidene-aromatic compound and butadiene.The composition contains a selectively hydrogenated radial block copolymer with terminal polymer blocks of the monovinyl- or mono-vinylidene-aromatic compound and, in the middle position, butadiene-based polymer blocks which had a 1,2-vinyl content of from 30 to 70 per cent by weight prior to hydrogenation. The compositions may be used, in particular, for the production of self-adhesive materials.

Abstract: Membranes for use in chlor-alkali cells, made of a copolymer of tetrafluoroethylene and sulfonylfluoride perfluorovinyl ether, have their selectivity improved, with resulting substantial decrease in consumption of electric power per mole of sodium hydroxide produced, by being heat-treated at 100 to 275.degree. Centigrade for several hours to four minutes. The current efficiency is substantially increased, and the power consumption, per unit of sodium hydroxide produced, is usually decreased by about 10 percent or more.

Abstract: A roll-on perfume composition comprising based on 100 parts by weight of total composition:(a) from 5 parts to 15 parts of an essential oil,(b) from 25 parts to 40 parts of an alcohol,(c) from 20 parts to 40 parts of certain polyoxyethlene polyoxypropylene block copolymers, and(d) from 5 parts to 50 parts of water.The resulting compositions are viscous, clear and stable perfumes.

Abstract: The zinc salts of 5-nitroisophthalic acid and of mononitroterephthalic acid inhibit the corrosion of steel when applied in otherwise conventional organic coatings.

Abstract: New substituted 1-alkenynyl-cyclohexanols and 1-alkenynyl-cyclohexenes. The 1-alkenynyl-cyclohexanols are obtained by reacting the corresponding cyclohexanone witn an enyne in the presence of a strongly basic condensing agent in an inert solvent, or with an alkali metal salt of an enyne in an inert solvent. The 1-alkenynyl-cyclohexenes are obtained by dehydrating the 1-alkenynyl-cyclohexanols or 1-cycloalkanolyl-alkynols. The new compounds are themselves interesting scents, but can also be used as starting materials for further interesting scents.

Abstract: A process for the manufacture of ethylene polymers by homopolymerization and copolymerization of ethylene at pressures of from 500 to 5,000 bars and at from 50.degree. to 450.degree. C, with subsequent isolation of the polymers in high pressure product isolation zones and low pressure product isolation zones. The various parallel product isolation zones are at different temperatures, and the mean product residence times in the zones may be identical or different. Very different products, in amounts which can be chosen according to requirements, and with mutually independent polymer properties, can be obtained using only one high pressure polymerization system.

Abstract: Pressure-sensitive adhesives are manufactured by reacting a mixture ofA from 10 to 90% by weight of a polyol having a molecular weight of from 300 to 8,000 and a hydroxyl number of from 20 to 85 andB from 5 to 60% by weight of an amorphous thermoplastic tackifier resin having a softening point of from 40.degree. to 140.degree. C and a molecular weight of from 200 to 7,500, withC from 5 to 30% by weight of a polyisocyanate masked with CH-acidic compounds,The percentages by weight being based on the total weight of components (a), (b) and (c).

Abstract: A process for the manufacture of copolymers of ethylene with n-butyl acrylate in a polymerization zone at pressures above 800 atmospheres and at from 150.degree. to 350.degree. C, wherein the reaction mixture obtained is transferred, via a cooling zone which is at a pressure below 500 atmospheres and at from 150.degree. to 250.degree. C, into the high pressure product isolation zone, the mean residence time of the reaction mixture in the two zones being from 2 to 10 minutes. A copolymer which gives good films is obtained.

Abstract: Branched block copolymers of from 60 to 95 percent by weight of a monovinyl-aromatic compound and from 40 to 5 percent by weight of a conjugated diene. The copolymers have a structure of the general formula(A.sup.1 -B.fwdarw.A.sup.2).sub.n --X--(A.sup.2 .rarw.B).sub.mwhere the A's are non-elastomeric polymer segments based on the monovinyl-aromatic compound, the B's are elastomeric polymer segments based on the conjugated diene, X is the radical of an at least trifunctional coupling agent and n and m are numbers. The copolymers may be used for the manufacture of highly transparent impact-resistant shaped articles, especially packaging materials.

Abstract: Concentrated, storage-stable solutions of alkylbenzenesulfonates, with alkyl chains of 8 to 18 carbon atoms, of basic dyes, in normally liquid alcohols, glycols and glycol ethers. The solutions are particularly suitable for producing waterfast prints, colorations, script and markings.

Abstract: 2,3,6- AND PREFERABLY ALSO 4-SUBSTITUTED PYRIDINE DERIVATIVES BEARING THE RADICAL OF AMMONIA OR A PRIMARY AMINE IN THE 2- AND 6-POSITIONS. The compounds are eminently suitable as coupling components for the production of azo dyes, the coupling taking place in the 5-position.